html,body{
    height: 100%;
}
.nav-left{
    height: calc(100% - 50px);
    width: 25%;
    float: left;
    overflow-y: auto;
    border-right: 1px solid #eee;
}
.nav-left .controls{
    width: 100%;
    border: 0;
    border-radius: 0;
    border-collapse: collapse;
    font-size: 15px;
    font-weight: 400;
    position: relative;
    display: table;
    overflow: hidden;
    table-layout: fixed;
}
.nav-left .nav-left-item{
    display: block;
    line-height: 50px;
    width: 100%;
    overflow: hidden;
    font-size: 0.3rem;
    color: inherit;
    text-align: center;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.nav-left .nav-left-item.active{
    color: #39BFB3;
    position: relative;
}
.nav-left .nav-left-item.active::after{
    content: '';
    display: inline-block;
    height: 100%;
    width: 0.16rem;
    background-color: #39BFB3;
    position: absolute;
    bottom: 0;
    left: 0;
    transform: translateX(-50%);
    border-radius: 0.02rem;
}
.content{
    width: 75%;
    padding: 0.3rem;
}
